20992119012 has 36 divisors (see below), whose sum is σ = 53073183436. Its totient is φ = 6996084480.

The previous prime is 20992118989. The next prime is 20992119037. The reversal of 20992119012 is 21091129902.

It can be written as a sum of positive squares in 2 ways, for example, as 395850816 + 20596268196 = 19896^2 + 143514^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20992119012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155712 + ... + 257352.

Almost surely, 2^20992119012 is an apocalyptic number.

It is an amenable number.

20992119012 is an abundant number, since it is smaller than the sum of its proper divisors (32081064424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20992119012 is a wasteful number, since it uses less digits than its factorization.

20992119012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107388 (or 107383 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The spelling of 20992119012 in words is "twenty billion, nine hundred ninety-two million, one hundred nineteen thousand, twelve".